Earths Water Lesson 1 How is water distributed

Earth’s Water Lesson 1

How is water distributed on the Earth? ü 97 % of the world’s Water supply is ocean (salt water). 2 % of the world’s water supply is frozen in icecaps and glaciers. ü

How is water distributed on the Earth? ü 0. 5 % of the world’s water supply is non-consumable water on land. 0. 5% of the world’s water supply is freshwater available for consumption. ü

Ø 1. What two factors cause the ocean to become salty? Ø 2. What are the two minerals in the ocean water that make it salty? Ø 3. Reese said” Mr. Suber, how can we only have 0. 5% of consumable fresh water on Earth, and not run out of our fresh water supply? ” Explain this.

World’s Oceans Can you name the five world oceans? Ø

World’s Oceans Ø Ø Ø Atlantic Pacific Indian Arctic Southern

Pacific Ocean • The largest ocean. It is larger than all the land put together. • It contains 48% of the world’s seawater. • The deepest ocean because the Mariana Trench is located in it. (over 36, 000 feet deep)

Atlantic Ocean • The second largest ocean. • It contains 23% of the world’s seawater. • Most traveled ocean • Sea floor spreading • This ocean is growing!! routes.

Indian Ocean • The warmest ocean. • Monsoons occur here • It contains 40% of the world’s oil production.

Arctic Ocean • The smallest ocean. • Located near North Pole • It is covered by drifting ice.

Southern Ocean • The newest ocean. • Recognized in 2000. • Located at the 60° S Latitude near the South Pole • It contains icebergs and deep continental shelves.

World’s Freshwater Groundwater: water that collects between bits of rock and soil. Ø What factors affect the groundwater? (Globe – pp. 210) Ø

How does groundwater reach the Earth’s surface? Water may reach the surface through wells, springs, or geysers. Ø What is the main difference between a spring and a geyser? (Globe – p. 212) Ø

What is the difference between a river and a lake or pond? Rivers or streams are running water. Ø Lakes or ponds are still water. Ø 90% of the continental surface water is found in lakes. Ø Are lakes fresh or salt water? Ø